Green-and-white Hummingbird
Elliotomyia viridicauda
Medium-sized hummingbird of middle elevations. Green above, white below, with a variably pinkish lower mandible. Found in humid forest and around forest edges. Distinguished with care from the very similar White-bellied Hummingbird by its completely dark underside of the tail (where there is some white in White-bellied), and by its sometimes darker lower mandible. Green-and-white Hummingbird is also typically more closely associated with forested habitats than White-bellied.
识别特征
The green-and-white hummingbird is 10 to 11 cm (3.9 to 4.3 in) long. Males weigh about 6.0 g (0.21 oz) and females about 5.5 g (0.19 oz). Both sexes have a medium length straight bill with a blackish maxilla and a reddish mandible with a dark tip. Adult males have brilliant green to bronze-green upperparts and flanks. Their undersides are whitish from the chin to the undertail coverts with greenish spots on the sides of the chin and throat and sometimes some golden-green on the coverts. Their tail is grayish green to golden green. Adult females are very similar to males, but with a light cream chin and throat that are more heavily spotted. Juveniles are similar to adult females with the cream of the throat extending to the belly.
分类信息
The green-and-white hummingbird has at various times been placed in genera Leucippus and Elliotia, and until 2014 in Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the green-and-white hummingbird was placed by most taxonomic systems in a new genus Elliotomyia. However, BirdLife International's Handbook of the Birds of the World (HBW) retains it in Amazilia. <p>The green-and-white hummingbird shares genus Elliotomyia with the white-bellied hummingbird (E. chionogaster). It is monotypic.
- 学名
- Elliotomyia viridicauda
- 命名信息
- (Berlepsch, 1883)
- 目
- Passeriformes
- 科
- Trochilidae
- 属
- Elliotomyia
分布与栖息地
The green-and-white hummingbird is found on the east slope of the Peruvian Andes discontinuously from Huánuco Department south to Cuzco, including at Machu Picchu. It inhabits the edges and clearings of mature subtropical forest and also secondary forest between the elevations of 1,000 and 2,500 m (3,300 and 8,200 ft).
- 迁徙
- Resident species
行为
The green-and-white hummingbird is generally sedentary though some local dispersal is probable.<p>The white-bellied hummingbird forages for nectar at a variety of flowering plants, shrubs, and trees, though its diet is not known in detail. In addition to nectar it feeds on small arthropods.<p>The white-bellied hummingbird's full breeding season has not been determined, but it is known to include January. It makes a cup nest of plant wool bound by spiderweb with lichen on the outside, and often places it on a horizontal branch of a small tree. The incubation period and time to fledging are not known.<p>The green-and-white hummingbird's song is "a repeated short phrase of typically three squeaky notes, 'tseet-chew-chip … tseet-chew-chip ...'." Its call is "two rising high-pitched notes followed by a descending stuttering series, 'tsee-tseeet-tsi-tsi-tsi-tsi'." Both are very similar to those of its close relative the white-bellied hummingbird.
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Hooded Siskin
Spinus magellanicus
Strikingly beautiful siskin found in woodland and grassland with scattered trees and usually highly gregarious; also sometimes associates with mixed-species flocks. Males have a black hood, wings, and tail, and are olive-yellow above and bright yellow below with large yellow wing patches. Females are duller and lack the black hood. The song is a long series of fast and squeaky notes; sometimes many males sing together.
Ethiopian Cisticola
Cisticola lugubris
A relatively colorful, mid-sized, long-tailed cisticola. Note the gray-brown back with thick black streaks, the rufous on the wing and cap, and the whitish underparts. Tail is slightly longer in non-breeding plumage. Found in wetlands, moist grassland, and scrub. Similar to Stout Cisticola, but has a slimmer bill, longer tail, and brighter rufous wing panel. The vocalizations are quick bursts of rough calls, usually followed by the dry, trilling song.
Double-toothed Kite
Harpagus bidentatus
Small hawk of tropical forests, mainly in the lowlands, that overall looks a lot like a loosely built Sharp-shinned Hawk. Most frequently seen soaring in mid-late morning, singly or in pairs, with wings bowed down, tail closed, and puffy white feathering visible under the base of the tail—a distinctive combination of features. Rarely seen perched, but can be very tame. When perched, note 3 narrow white tail bands and a black stripe down the center of the throat. The cutting edge of the bill has a double notch (hence the name double-toothed) that is rarely visible.
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